Apart from disagreeing about how “nonlocal” such experiments might be, the path integral viewpoint may also offer a topological account of why triangle-network correlations seem to be so different from traditional Bell-correlations. Consider that the entanglement-swapping experiments in Sections 3.1 and 3.2 also have three measurement locations, counting the central measurement. And yet the correlations in ES and DCES look to be dramatically different from the three-measurement correlations possible in the triangle network topology.[1]}, [2]} Any analysis of this difference based on instantaneous states seems inferior to analyzing the entire histories of the path integral, using the important context of the connectivity pattern in spacetime.
